<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>test</title>
</head>
<body>

<script type="text/javascript">
    var a = [];
    console.log(a.length);

    var b = 0;
    for(var i = 0; i<100; i++)
    {
        console.log(i);
    }
//    setTimeout(function(){
//        console.log(b);
//    },1000);


    for(var j = 6666; j < 6676; j++)
    {
        console.log(j)
    }

</script>

</body>
</html>